Drug interactions
Ciltacabtagene autoleucel + Interferon beta 1b
Severity: Major
Ciltacabtagene autoleucel and Interferon beta 1b: major interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Ciltacabtagene autoleucel is a CAR-T therapy that causes prolonged cytopenias and raises infection risk. Interferon beta may add immune modulation and marrow suppression. The combination has not been well studied.
What this interaction means in plain words
Ciltacabtagene autoleucel and Interferon beta 1b can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Ciltacabtagene autoleucel belongs to Miscellaneous; Interferon beta 1b belongs to Central Nervous System.
Why it happens
Additive immunosuppressive and myelosuppressive effects; the effect on CAR-T expansion is not established.
What to do
Avoid interferon beta around CAR-T therapy and choose an alternative where possible. If coadministered, monitor blood counts and infection signs closely.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Interferon beta 1b
Other interactions of Ciltacabtagene autoleucel
Frequently asked questions
Can I take Ciltacabtagene autoleucel with Interferon beta 1b?
MediHelp rates the interaction as major. Ciltacabtagene autoleucel and Interferon beta 1b can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Ciltacabtagene autoleucel is a CAR-T therapy that causes prolonged cytopenias and raises infection risk. Interferon beta may add immune modulation and marrow suppression. The combination has not been well studied.
How serious is the interaction between Ciltacabtagene autoleucel and Interferon beta 1b?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid interferon beta around CAR-T therapy and choose an alternative where possible. If coadministered, monitor blood counts and infection signs closely.
What other medicines interact with Interferon beta 1b?
MediHelp also lists interactions of Interferon beta 1b with, for example, Axicabtagene ciloleucel, Brexucabtagene autoleucel, Deferiprone. The full list is on the Interferon beta 1b page.
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